JPH0646277Y2 - Shrinkage mechanism of waste straw of combine harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a combine straw discharge shredding mechanism in which a discharge straw discharged from a threshing device is shredded by a disk-type discharge straw cutter.

[Prior art]

Conventionally, a disk-type discharge straw cutter attached to the rear end of a combine threshing device is formed at the rear end of the threshing device, as disclosed in, for example, Japanese Utility Model Publication No. 61-12191 and No. 59-70431. By changing the position between the normal working position close to the upper part of the dust outlet and the non-working position located below the dust outlet, for example, when the processed material is clogged in the swing sorting unit of the threshing device, etc. In the above, the disc-type waste wall cutter is set to the non-acting position so that maintenance work inside the threshing device can be performed from the rear of the threshing device.

[Problems to be solved by the device]

By the way, the above-mentioned conventional structure of the waste wall cutter supports the disc type waste wall cutter by alternately obliquely supporting the threshing device at a plurality of engaging portions arranged above and below a pair of left and right supporting members provided on the arm. It is possible to change the position while it is in the state where it is in the state where it is in the state where it is held, or by elastically urging the disc type exhaust wall cutter upward with a spring so that the position change of the disc type exhaust wall cutter between the normal operating position and the non-operating position can be performed with less labor. However, in order to fix the disc type discharge wall cutter at the normal operating position, the disc type discharge wall cutter is locked and held at a predetermined locking portion or a supporting position of the pair of left and right supporting members,
In that state, since the disc-shaped discharge wall cutter and the supporting member were connected and fixed near the predetermined locking portion or the support position, stress was likely to be concentrated on the fixed support position of the disc-shaped discharge wall cutter, and therefore durability Therefore, the cost is increased due to the need to reinforce the property.

The present invention has been made in view of the above circumstances, and is capable of easily moving the waste straw cutter and performing maintenance work inside the threshing device, while providing a reinforcing structure or the like to the support strength of the waste straw cutter. It is an object of the present invention to provide a combine straw discharge shredding mechanism that can be made expensive without special provision.

[Means for solving problems]

In order to achieve the above object, the combine straw discharging shredding mechanism according to the present invention has a normal working position in which both left and right sides of the disk-type discharge straw cutter are close to the upper part of the dust outlet formed at the rear end of the threshing device. , A supporting member for supporting the guide movement up and down and fixedly in a non-acting position located below the dust discharge port is provided at the rear end of the threshing device, and the disc-shaped support member is provided in the supporting member. A guide groove that engages a support rod provided on the upper part of the discharge wall cutter and guides it in the vertical direction is formed, and the disc-shaped discharge wall cutter at the normal operating position is formed above the guide groove of the support member. The supporting rod is provided with an engaging portion, and the fixing portion provided at the lower portion of the disc-shaped waste wall cutter in a state where the supporting rod is engaged with the engaging portion is provided at a position different from the supporting member. A fixing means for fixed connection to the The characterized configuration.

The operation and effect of this characteristic configuration are as follows.

[Action]

That is, the disc-type discharge wall cutter is lifted or lifted while guiding the support rods in the guide grooves of the pair of left and right support members, so that the vertical position can be changed over between the normal operating position and the non-operating position without much labor. In addition, in the normal operating position, the upper support rod of the disk-type waste straw cutter is locked to the upper engaging part of the guide groove of the support member, and the lower fixing part of the disk-type waste straw cutter is threshing device. Since the disk-type exhaust wall cutter can be locked and fixed at two positions vertically separated from each other, it is possible to prevent stress from concentrating on the connecting and fixing positions. Further, since only the supporting rod of the locking wreath is guided by the guide groove of the support member, the guide groove can be made relatively short in the vertical direction by the amount that it is not necessary to guide the fixed portion under the disk-shaped exhaust wall cutter by the support member. .

[Effect of device]

Therefore, since the supporting strength of the disc-type exhaust wall cutter is high, it is not necessary to perform special reinforcement,
The structure can be made relatively simple and inexpensive, and the guide range of the disc-shaped exhaust wall cutter by the support member can be made relatively short.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 3 shows a vertical side surface of the threshing device (1) mounted on the combine. In this threshing device (1), grain culms cut by a pre-cutting processing section (not shown) are fed and conveyed by a feed chain (3), and a net (5) and a shaker are provided below a handling room (4). A sorting section (9) including a dynamic sorting case (6), a sorting wind generating fan (7), and a front separate section (9)
Equipped with a dust-exhaust fan (11) that discharges the floating dust generated in the above from the dust-exhaust port (10) to the outside of the machine. Is conveyed to the rear of the threshing device (1) and is shredded by the disc-shaped waste wall cutter (2).

As shown in FIGS. 1 and 2, the waste wall cutter (2) has a dust outlet (1) formed at the rear end of the threshing device (1).
(0) near the normal operating position and above the dust outlet (1
It is configured to be vertically movable and fixable over a non-acting position located below 0).

That is, the exhaust wall cutter (2) is attached to the low speed rotating shaft (1
A plurality of receiving blades (14) are installed side by side in 3) and a low-speed rotating shaft (1
3) A plurality of disc-shaped cutting blades (16) are arranged side by side through a high-speed rotating shaft (15) at the rear lower side, and erected over the entire width in the vicinity of the upper end on the threshing device (1) side. Supporting rods (17)
Are locked to the respective locking portions (19 or 20) of the pair of left and right support members (18) and (18) fixed to the rear end of the threshing device (1) to be in the normal operating position or the non-operating position. It is configured so that it can be fixed.

With the support rod (17) locked to the locking part (19 or 20), the fixing parts (21) and (21) provided below the discharge wall cutter (2) are connected to the support member (18). Can be fixed to the threshing device (1) at both upper and lower positions of the waste straw cutter (2) by fixing with bolts (22) as fixing means for fixing and coupling at another position. 2) To move up and down, use the fixing bolts (22)
The support rod (17) is removed, and the support rod (17) is guided up and down along a guide hole (23) as a guide groove of the support member (18).

When the discharge wall cutter (2) is moved up and down, two workers may hold the left and right ends of the cutter at the same time and raise or lower them at the same time, or one worker may raise or lower both ends of the cutter one by one.

Further, when the discharge wall cutter (2) is lowered, the upper surface of the cutter can be used as a cradle when the rocking sorting case (6) in the threshing device (1) is put in and taken out. Also, if the upper surface strength of the exhaust wall cutter (2) is set to be sufficiently high, it can be used as a step on which an operator rides when cleaning the exhaust wall chain (12).

Further, it is also possible to mount the exhaust straw bundling device on the upper portion of the exhaust straw cutter (2) in a lowered state. Further, if the discharge wall cutter (2) is supported by the support member (18) via the suspension spring, the vertical movement of the cutter becomes even lighter.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 shows an embodiment of a combine straw discharging shredding mechanism according to the present invention. FIG. 1 is a side view of a disposing portion where the discharge straw is bought, FIG. 2 is a perspective view of a discharge straw cutter mounting portion, and FIG. FIG. 4 is an overall side view of the thresher, and FIG. 4 is an overall side view of the combine. (1) ... threshing device, (2) ... waste wall cutter, (10)
…… Dust outlet, (17) …… Support rod, (18) …… Support member,
(19) …… Locking part, (21) …… Fixing part, (22) …… Fixing means, (23) …… Guide groove.

Claims (1)

[Scope of utility model registration request] 1. A normal operating position in which both left and right sides of a disk-shaped waste wall cutter (2) are close to the upper part of a dust outlet (10) formed at the rear end of the threshing device (1), and the dust outlet (10). ) Is provided at the rear end of the threshing device (1) and is supported at the rear end of the threshing device (1) so as to be guided and moved vertically and fixedly over a non-acting position located below. Is a support rod (17) provided on the upper part of the disc-shaped waste wall cutter (2).
A guide groove (23) for engaging and guiding in the up-down direction is formed, and the disc-shaped discharge wall cutter at the normal operating position is provided above the guide groove (23) of the support member (18). A locking portion (19) for locking the support rod (17) of (2) is provided, and the disk-shaped discharger cutter (2) with the support rod (17) locked to the locking portion (19). ) A fixing mechanism (21) for fixing and connecting a fixing portion (21) provided at the lower part of the) to the threshing device (1) at a position different from the supporting member (18). .